Squid - (bulletinoct2019)ID: oval:org.secpod.oval:def:2105109 | Date: (C)2019-12-16 (M)2024-02-19 |
Class: PATCH | Family: unix |
An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token"s value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.